Driving component, motor and camera module

Abstract

The utility model discloses a driving member, which belongs to the camera module field, and comprises an insulation main body and a buffer assembly arranged on the insulation main body, the buffer assembly comprises an installation part assembled on the insulation main body and a buffer part arranged on the installation part, the buffer part is provided with a buffer surface, and the buffer surface is provided with a plurality of buffer holes. And the buffer surface protrudes out of the surface of the insulating main body. The buffer part is formed on the mounting part through injection molding to form the buffer assembly and then is combined to the insulating main body, so that the buffer part can be prevented from being directly assembled and matched with the insulating main body, abrasion caused by friction when the buffer part is matched with the insulating main body is avoided, and the buffer part can be more conveniently integrated on the driving component.

Description

Technical Field

[0001] The utility model relates to the technical field of camera modules, in particular to a driving component, a motor including the driving component, and a camera module including the motor. Background Art

[0002] The motor is an indispensable component of the camera module. During the operation of the camera module, the motor is used to drive the lens to move to achieve the focus and anti-shake functions of the camera module.

[0003] The motor usually includes a carrier for carrying the lens, a shell surrounding the carrier, a base for fixing the shell, an elastic element for movably supporting the carrier in the space defined by the base and the shell, magnets respectively arranged on the shell and the carrier, and a coil matched with them. The working principle of the motor is: a specified current is passed into the coil, and the magnetic field generated by the coil interacts with the magnet, thereby driving the carrier to move relative to the shell, and the carrier drives the lens to move, so as to achieve focus and anti-shake of the camera module.

[0004] When the motor drives the lens to move, the carrier moves relative to the housing and the base. During the movement, collisions may damage components or generate some debris, causing excessive stains inside the motor. In addition, during the reliability test of the motor, collisions and drops are routine tests. During this process, the carrier, housing, and base collide to generate debris. The debris may adhere to the various components of the motor and affect the use of the motor. After the motor is assembled in the camera module, the camera module also needs to undergo reliability testing. At this time, because the carrier and the lens are fixed together, under the weight of the lens itself, the collision between the carrier and the housing and the base during the fall is more intense, which will generate more debris inside the motor. These debris may adhere to the lens, affecting the image quality and causing the entire camera module to be defective.

[0005] In patent CN114070965A, an elastic polymer layer is directly injected onto the protruding structure on the side surface of the carrier body by secondary molding to form a buffer portion, thereby avoiding damage to components and generation of debris during collision. However, when the buffer portion is small in structure or complex in shape, the manufacturing cost is high and the efficiency is low.

[0006] In addition, the buffer part is mounted on the driving component by gluing, but when the buffer part is mounted on the driving component, friction is generated due to assembly, which may cause wear to the buffer part.

[0007] Therefore, how to avoid the buffer part from being directly assembled with the plastic body and to more conveniently integrate the buffer part into the driving component has become a technical problem that needs to be solved urgently. Utility Model Content

[0008] In order to overcome the shortcomings of the prior art, one of the objectives of the present invention is to provide a driving component that can prevent the buffer portion from being worn when it is installed on the driving component.

[0009] One of the purposes of the utility model is achieved by the following technical solution:

[0010] A driving component includes an insulating body and a buffer component arranged on the insulating body, wherein the buffer component includes a mounting portion assembled on the insulating body and a buffer portion arranged on the mounting portion, and the buffer portion is provided with a buffer surface protruding from the surface of the insulating body.

[0011] Furthermore, the mounting portion is embedded and assembled on the injection-molded insulating body, with the height direction of the insulating body as the vertical direction, and the projections of the buffer portion and the insulating body in the vertical direction overlap.

[0012] Furthermore, the buffer portion is assembled on the mounting portion, or the buffer portion is injection molded on the mounting portion.

[0013] Further, the buffer portion is formed of an elastically deformable material, and the mounting portion is made of metal and is in a plate shape.

[0014] Furthermore, a gap is formed between the buffer portion and the insulating body.

[0015] Furthermore, the insulating body is provided with an inserting slot, and the mounting portion is inserted into the inserting slot.

[0016] Furthermore, the driving component is a fixed motor base or a relatively movable motor support, the insulating body includes a bottom plate and side plates extending upward from the bottom plate, and the buffer assembly is mounted on the side plates of the insulating body.

[0017] Furthermore, the side panel includes connecting walls respectively located on both sides and a protruding wall connected between the two connecting walls, the thickness of the protruding wall is greater than the thickness of the connecting wall, the buffer component is assembled on the protruding wall, and the buffer surface protrudes from the protruding wall.

[0018] Furthermore, a recess is formed on the protruding wall, the recess extends vertically downward from the end surface of the side plate away from the bottom plate and passes through the inner side surface of the side plate, and two opposite sides of the recess extend relative to each other to form a blocking wall, and the insertion groove is formed between the blocking wall and the inner side surface.

[0019] Furthermore, a spacer is convexly provided on the inner side surface of the recess, the plug-in groove is formed between the spacer and the blocking wall, the spacer includes a first spacer and a second spacer that are relatively spaced apart, a groove is formed between the first spacer and the second spacer, the buffer is located in the groove and forms a gap with the side panel, and the gap is filled with glue.

[0020] Furthermore, the buffer portion includes a first buffer portion and a second buffer portion, the first buffer portion and the second buffer portion are respectively located on opposite sides of the mounting portion, the first buffer portion protrudes from the protruding wall, and the second buffer portion is located in the groove.

[0021] Furthermore, the buffer portion also includes a perforated portion, the first buffer portion and the second buffer portion are respectively fixed at opposite ends of the perforated portion, the mounting portion is provided with a mounting hole, the perforated portion is located in the mounting hole, and the projection area of ​​the first buffer portion and the second buffer portion on the mounting portion is larger than the projection area of ​​the perforated portion on the mounting portion.

[0022] Furthermore, the driving member also includes a reinforcement member embedded in the insulating body, the reinforcement member includes a reinforcement plate and a reinforcement arm formed by bending the end of the reinforcement plate, the insulating body includes a bottom plate and a side plate extending from the bottom plate, the reinforcement plate is embedded in the bottom plate, and the reinforcement arm is located at the side plate corresponding to the buffer assembly and is arranged parallel to the mounting portion.

[0023] Furthermore, the reinforcing arm is provided with a glue grabbing hole at a position corresponding to the buffer component; and / or the roughness of the surface of the reinforcing arm corresponding to the buffer component and facing the buffer component is greater than the roughness of other positions, and glue is filled between the reinforcing arm and the mounting portion.

[0024] The second purpose of the utility model is achieved by the following technical solution:

[0025] A motor comprises any one of the above-mentioned driving components and a matching component that generates relative motion with the driving component, wherein during the relative motion between the driving component and the matching component, the buffer portion forms a buffering effect for the mutual collision between the driving component and the matching component.

[0026] The third purpose of the utility model is achieved by the following technical solution:

[0027] A camera module includes a lens assembly. The camera module also includes the above-mentioned motor, and the motor drives the lens assembly to move.

[0028] Compared with the prior art, the buffer part of the utility model is arranged on the mounting part to form a buffer assembly which is then combined with the insulating body. This can avoid the buffer part being directly assembled with the insulating body, avoid wear caused by friction when the buffer part and the insulating body are matched, and can more conveniently integrate the buffer part into the driving component. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional diagram of the driving component of the utility model;

[0030] Figure 2 for Figure 1 An exploded view of the drive components;

[0031] Figure 3 for Figure 2 An exploded view of a local structure of a driving component;

[0032] Figure 4 for Figure 3 A three-dimensional diagram of the local structure of the insulating seat of the main body;

[0033] Figure 5 for Figure 4 A three-dimensional cross-sectional view of an insulating seat of a main body;

[0034] Figure 6 for Figure 5 A three-dimensional cross-sectional view of the insulating seat from another perspective;

[0035] Figure 7 for Figure 2 An exploded view of a buffer assembly of a drive member;

[0036] Figure 8 for Figure 1 A three-dimensional cross-sectional view of a driving component.

[0037] In the figure: 10, insulating body; 11, insulating seat; 110, bottom plate; 120, first side plate; 130, second side plate; 131, connecting wall; 132, protruding wall; 133, spacer; 1331, first spacer; 1332, second spacer; 134, groove; 135, plug-in slot; 136, blocking wall; 12, insulating block; 20, buffer assembly; 21, mounting portion; 210, mounting hole; 22, buffer portion; 220, first buffer portion; 2201, first buffer surface; 221, second buffer portion; 2210, second buffer surface; 222, perforated portion; 223, give way groove; 30, conductive terminal; 40, reinforcement member; 41, reinforcement plate; 42, reinforcement arm; 420, glue grab hole; 50, electronic component; 60, gap. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be another intermediate component through which it is fixed. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be another intermediate component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be another intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0041] The driving component of the utility model can be a fixed motor base or a relatively moving motor bearing member in the camera module. The motor includes a driving component and a matching member that generates relative movement with the driving component. For example, when the driving component is a fixed motor base, the matching member is a relatively moving motor bearing member. When the driving component is a relatively moving motor bearing member, the matching member is a fixed motor base. The driving component and the matching member are easy to collide with each other during the relative movement.

[0042] See also Figure 1 , Figure 2 as well as Figure 3 The driving component of the utility model includes an insulating body 10, a buffer assembly 20 installed on the insulating body 10, a conductive terminal 30 and a reinforcement 40 injection-molded on the insulating body 10, and an electronic component 50 fixed and electrically connected to the conductive terminal 30.

[0043] The insulating body 10 is formed by secondary injection molding of plastic. The insulating body 10 includes an insulating seat 11 and an insulating block 12 which are fixedly combined with each other by injection molding. The insulating block 12 is injection molded on the conductive terminal 30 at one time, and the insulating seat 11 is injection molded on the conductive terminal 30 and the insulating block 12 at a secondary time to form an insulating body 10 with an internal installation space. The reinforcement 40 and part of the conductive terminal 30 are arranged at intervals from each other and are embedded in the secondary injection molded insulating seat 11 at the same time. In other embodiments, the insulating body 10 can also be integrally injection molded, which is not limited in this application. The insulating seat 11 includes a bottom plate 110 and a side plate extending from the bottom plate 110, the side plate is perpendicular to the bottom plate 110, and the side plate and the bottom plate 110 form a receiving space.

[0044] In order to provide a buffer for collision when the driving member moves relative to the matching member, the buffer assembly 20 is provided to prevent the driving member and the matching member from being damaged due to collision, and to prevent dust from being generated during collision to affect the optical performance. The buffer assembly 20 includes a mounting portion 21 assembled on the insulating body 10 and a buffer portion 22 provided on the mounting portion 21, and the buffer portion 22 is provided with a buffer surface, and the buffer surface protrudes from the surface of the insulating body 10.

[0045] The mounting portion 21 is embedded and assembled on the insulating body 10 after injection molding, with the height direction of the insulating body 10 as the vertical direction, and the projections of the buffer portion 22 and the insulating body 10 in the vertical direction overlap. In the embodiment of the present application, a plurality of buffer components 20 are arranged on the insulating seat 11. The buffer components 20 are specifically fixed to a local area of ​​the inner side surface of at least one side plate of the insulating seat 11 and protrude from the inner wall of the side plate to buffer the collision between the driving component and the mating part. The insulating seat 11 may include an outer plate in the shape of a rectangular frame and may also include an inner plate arranged in the internal installation space. The surfaces of the outer plate and the inner plate may be provided with buffer components 20.

[0046] Specifically, the number of buffer components 20 is two, and the two buffer components 20 are respectively arranged on two oppositely arranged side panels. In other embodiments, the number of buffer components 20 can be four, which are respectively arranged on four side panels. The side panels include two first side panels 120 and two second side panels 130. The two first side panels 120 are arranged oppositely and parallel to each other, and the two insulating blocks 12 are respectively arranged on the two first side panels 120. The two second side panels 130 are arranged oppositely and parallel to each other, and the two buffer components 20 are arranged oppositely on the two second side panels 130, thereby being able to buffer the collision between the driving component and the mating component in the same linear direction of relative movement.

[0047] Please continue reading Figure 4 , Figure 5 as well as Figure 6Each second side plate 130 includes two connecting walls 131 located on both sides and a protruding wall 132 connected between the two connecting walls 131. The thickness of the protruding wall 132 is greater than the thickness of the connecting wall 131. The inner side surfaces of the connecting wall 131 and the protruding wall 132 are inclined at an angle. The buffer assembly 20 is arranged on the protruding wall 132 and protrudes from the protruding wall 132. The protruding wall 132 is provided with a recess, which extends from the end surface of the second side plate 130 away from the bottom plate 110 in the vertical direction and passes through the inner side surface of the second side plate 130 to form an inner side opening structure, so that the buffer assembly 20 is installed and fixed in the recess. The second side plate 130 also includes a spacer 133, which protrudes from the inner side surface of one side of the recess, and a plug-in slot 135 is formed between the spacer 133 and the protruding wall 132, and the plug-in slot 135 is used to plug the buffer assembly 20. The spacer 133 includes a first spacer 1331 and a second spacer 1332 spaced apart from the first spacer 1331, and a groove 134 is formed between the first spacer 1331 and the second spacer 1332. Specifically, in the present embodiment, the spacer 133 is U-shaped and a groove 134 is formed in the middle. The groove 134 forms the installation position of the second buffer portion 221 of the buffer assembly 20, and the width of the groove 134 is greater than the width of the second buffer portion 221, so that the second buffer surface 2210 of the second buffer portion 221 forms at least a partial gap 60 with the inner side surface of the recess (such as Figure 8 The gap 60 can prevent the buffer component 20 from rubbing against the insulating body 10 during installation to cause wear and debris, and can also fill the gap 60 with glue to enhance the bonding force between the buffer component 20 and the insulating body 10.

[0048] Please continue reading Figure 7 The buffer assembly 20 includes a waist-shaped buffer portion 22, and the buffer portion 22 can be formed of an elastically deformable material, such as a silicone material, a TPE material, a TPR material, etc., so as to reduce the impact and noise generated when colliding with the carrier. The buffer portion 22 is arranged on the plate-shaped mounting portion 21 to be mounted and fixed to the recess through the mounting portion 21. The mounting portion 21 and the buffer portion 22 can be an integral structure or a split structure. In this embodiment, the mounting portion 21 is made of a harder material than the buffer portion 22, such as plastic, metal or other hard structures. The mounting portion 21 is installed in the recess and the buffer portion 22 protrudes inward from the inner side of the protruding wall 132 through the inner opening of the recess.

[0049] In the preferred embodiment, the buffer portion 22 is injection molded on the mounting portion 21. In the preferred embodiment of the present application, the mounting portion 21 is made of metal. The mounting portion 21 is made of metal. On the one hand, the structural strength of the mounting portion 21 is increased. On the other hand, in order to set the buffer assembly 20 here, the material of the recessed side panel itself is reduced. To further increase the structural strength of the reinforcing arm 42, it is necessary to set a glue grabbing hole 420 to increase the bonding strength. The glue grabbing hole 420 will weaken the electromagnetic shielding effect of the reinforcing arm 42. The position of the mounting portion 21 corresponds to the position of the glue grabbing hole 420. The metal mounting portion 21 can play an electromagnetic shielding role to reduce electromagnetic interference between electronic components 50.

[0050] The buffer portion 22 can also be installed on the mounting portion 21 by means of adhesive fixation, clamping fixation, or locking with a locking piece. In a preferred embodiment of the present application, in order to facilitate injection molding fixation of the buffer portion 22 relative to the mounting portion 21 made of metal, the mounting portion 21 is provided with a mounting hole 210, and the mounting hole 210 is used to install the buffer portion 22. Specifically, there are two mounting holes 210, and the two mounting holes 210 are arranged at intervals, and the buffer portion 22 is injection molded on the two mounting holes 210.

[0051] Specifically, the buffer portion 22 includes a first buffer portion 220, a second buffer portion 221, and a perforated portion 222 connecting the first buffer portion 220 and the second buffer portion 221. The number of the perforated portions 222 corresponds to the number of the mounting holes 210. In this embodiment, the number of the perforated portions 222 is two, and a clearance groove 223 is formed between the two perforated portions 222. The two perforated portions 222 can increase the stability of the buffer portion 22 relative to the mounting portion 21 and prevent the buffer portion 22 from being twisted and deformed on the mounting portion 21. The projection area of ​​the first buffer portion 220 and the second buffer portion 221 on the mounting portion 21 is larger than the projection area of ​​the perforated portion 222 on the mounting portion 21, so that the contact area of ​​the buffer portion 22 is increased and the buffer portion 22 is prevented from falling off from the mounting portion 21. The thickness of the first buffer portion 220 is greater than the thickness of the second buffer portion 221, so that the thickness of the first buffer portion 220 providing actual buffering capacity is larger within a limited thickness range of the second side plate 130 to enhance the buffering capacity of the buffer 20.

[0052] The first buffer portion 220 has one end away from the mounting portion 21 to form a first buffer surface 2201, which contacts the mating piece when it collides. The second buffer portion 221 has one end away from the mounting portion 21 to form a second buffer surface 2210, which faces the inner wall of the recess and forms at least a partial gap 60 with the inner wall of the recess. The first buffer surface 2201 and the second buffer surface 2210 are provided with a horizontally or vertically extending wavy structure, the wavy structure of the first buffer surface 2201 absorbs the impact caused by the collision, and the wavy structure of the second buffer surface 2210 enhances the adhesive force of the glue.

[0053] Please continue reading Figure 8 In order to avoid friction between the buffer part 22 and the insulating body 10 when the buffer part 22 is installed, the first buffer part 220 and the second buffer part 221 are spaced apart from the insulating body 10. Specifically, the edge of the first buffer part 220 and the edge of the recess are spaced apart to form a gap 60, the edge of the second buffer part 221 and the edge of the groove 134 are spaced apart to form a gap 60, and the second buffer surface 2210 and the inner wall of the recess form at least a portion of the gap 60. The gap 60 is filled with glue to increase the bonding force between the buffer component 20 and the insulating body 10 and prevent the buffer component 20 from falling off the insulating body 10.

[0054] Please continue reading Figure 3 The conductive terminal 30 is embedded in the insulating body 10 and welded to the electronic component 50, so that the electronic components 50 on the two insulating blocks 12 are electrically connected. The conductive terminal 30 and the reinforcement member 40 are embedded in the bottom plate 110 at the same time and staggered on the projection of the bottom plate 110. In order to avoid contact between the conductive terminal 30 and the reinforcement member 40, the conductive terminal 30 and the reinforcement member 40 on the bottom plate 110 are located at different heights and separated by plastic.

[0055] The reinforcement member 40 is embedded in the insulating seat 11 to increase the structural strength of the insulating seat 11 so that the insulating body 10 can be made thin, which is conducive to the miniaturization of the driving component. At the same time, the reinforcement member 40 is made of metal, which can enable the insulating body 10 to shield electronic signals and avoid signal interference between electronic components 50. Specifically, the reinforcement member 40 includes a reinforcement plate 41 and reinforcement arms 42 formed by bending the two ends of the reinforcement plate 41, and the two reinforcement arms 42 are parallel to each other and perpendicular to the reinforcement plate 41. The reinforcement plate 41 is embedded in the bottom plate 110, and the two reinforcement arms 42 are respectively embedded in the two second side plates 130 and are located at the protruding wall 132 corresponding to the buffer assembly 20. Each reinforcement arm 42 extends from the bottom plate 110 to the end face of the protruding wall 132, and is arranged parallel to the mounting portion 21.

[0056] Each reinforcing arm 42 is provided with a glue-grabbing hole 420 at a position corresponding to the buffer portion 22. The glue-grabbing hole 420 increases the bonding force between the reinforcing arm 42 and the insulating body 10. Since the protruding wall 132 is provided with a depression, the second side plate 130 where the protruding wall 132 is provided is thinner than other places, resulting in the plastic thickness of the reinforcing arm 42 being thinner, and the bonding force between the reinforcing arm 42 and the insulating body 10 being reduced. The problem caused by the reduced bonding force is avoided by providing the glue-grabbing hole 420. After the surface of the reinforcing arm 42 facing the buffer portion 22 is roughened, it can accommodate more glue between the mounting portion 21 and the reinforcing arm 42, further increasing the adhesion between the mounting portion 21 and the reinforcing arm 42, that is, the roughness of the surface of the reinforcing arm 42 corresponding to the buffer component 20 and facing the buffer component 20 is greater than the roughness of other positions.

[0057] The electronic component 50 is fixed to the insulating block 12, and the electronic component 50 is a coil assembly, an IC, or a printed circuit board with an integrated IC. The coil in the present application can be understood as a coil type such as a wound coil or a printed coil. In the present application, the coil is used to interact with the magnetic assembly to realize the drive of the lens or the blades in the aperture assembly. The IC or the printed circuit board with an integrated IC is used to realize the sensing or calculation control function to realize the refined control of the lens or the blades.

[0058] The buffer part 22 of the present application is formed into a buffer assembly 20 by injection molding on the mounting part 21 and then combined with the insulating body 10 through the mounting part 21, which can avoid the buffer part 22 from being directly assembled with the insulating body 10, avoid the friction and wear caused by the buffer part 22 and the insulating body 10, and can more conveniently integrate the buffer part 22 into the driving component. The insulating body 10 and the buffer part 22 are arranged around the interval, on the one hand, further preventing the buffer part 22 and the insulating body 10 from friction and wear when assembling the buffer assembly 20, and on the other hand, filling the gap 60 with glue to increase the bonding force between the buffer assembly 20 and the insulating body 10, and prevent the buffer assembly 20 from falling off the insulating body 10. The reinforcing arm 42 is embedded in the recess of the insulating body 10, which not only enhances the structural strength of the insulating body 10 at the recess, but also after the gap 60 is filled with glue, the adhesion between the mounting part 21 and the reinforcing arm 42 is stronger, further increasing the bonding force between the buffer assembly 20 and the insulating body 10. The glue-catching holes 420 of the reinforcement 40 increase the bonding force between the reinforcement 40 and the insulating body 10 . After the surface of the reinforcement 40 facing the mounting portion 21 is roughened, more glue can be accommodated between the mounting portion 21 and the reinforcement 40 , further increasing the adhesion between the mounting portion 21 and the reinforcement 40 .

[0059] The present application also relates to a motor, comprising the above-mentioned driving member and a matching member that generates relative motion with the driving member, wherein during the relative motion between the driving member and the matching member, a buffer portion forms a buffering effect for the mutual collision between the driving member and the matching member.

[0060] The present application also relates to a camera module, comprising a lens assembly and the above-mentioned motor, wherein the motor drives the lens assembly to move.

[0061] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the utility model, several modifications and improvements can be made, which are equivalent modifications and improvements made to the above embodiments based on the essential technology of the utility model, and all of them belong to the protection scope of the utility model.

Claims

1. A driving member, comprising an insulating body and a buffer assembly disposed on the insulating body, characterized in that: The buffer assembly includes a mounting portion assembled on the insulating body and a buffer portion arranged on the mounting portion. The buffer portion is provided with a buffer surface, and the buffer surface protrudes from the surface of the insulating body.

2. The driving member according to claim 1, characterized in that: The mounting portion is embedded and assembled on the injection-molded insulating body, with the height direction of the insulating body as the vertical direction, and the projections of the buffer portion and the insulating body in the vertical direction overlap.

3. The driving member according to claim 1, characterized in that: The buffer portion is assembled on the mounting portion, or the buffer portion is injection-molded on the mounting portion.

4. The driving member according to claim 1, characterized in that: The buffer portion is formed of an elastically deformable material, and the mounting portion is made of metal and has a plate shape.

5. The driving member according to claim 2, characterized in that: A gap is formed between the buffer portion and the insulating body.

6. The driving member according to claim 5, characterized in that: The insulating body is provided with an inserting slot, and the mounting portion is inserted into the inserting slot.

7. The driving member according to claim 6, characterized in that: The driving component is a fixed motor base or a relatively movable motor bearing member, the insulating body includes a bottom plate and a side plate extending upward from the bottom plate, and the buffer assembly is installed on the side plate of the insulating body.

8. The driving member according to claim 7, characterized in that: The side plate includes connecting walls located at both sides and a protruding wall connected between the two connecting walls. The thickness of the protruding wall is greater than the thickness of the connecting wall. The buffer component is assembled on the protruding wall, and the buffer surface protrudes from the protruding wall.

9. The driving member according to claim 8, characterized in that: A depression is formed on the protruding wall, and the depression extends vertically downward from the end surface of the side plate away from the bottom plate and passes through the inner side surface of the side plate. Two opposite sides of the depression extend relative to each other to form a blocking wall, and the insertion groove is formed between the blocking wall and the inner side surface.

10. The driving member according to claim 9, characterized in that: A spacer is convexly provided on the inner side surface of the depression, and the insertion groove is formed between the spacer and the blocking wall. The spacer includes a first spacer and a second spacer that are relatively spaced apart, and a groove is formed between the first spacer and the second spacer. The buffer is located in the groove and forms a gap with the side panel, and the gap is filled with glue.

11. The driving member according to claim 10, characterized in that: The buffer portion includes a first buffer portion and a second buffer portion, the first buffer portion and the second buffer portion are respectively located at two opposite sides of the mounting portion, the first buffer portion protrudes from the protruding wall, and the second buffer portion is located in the groove.

12. The driving member according to claim 11, characterized in that: The buffer portion also includes a perforated portion, the first buffer portion and the second buffer portion are respectively fixed at opposite ends of the perforated portion, the mounting portion is provided with a mounting hole, the perforated portion is located in the mounting hole, and the projection areas of the first buffer portion and the second buffer portion on the mounting portion are larger than the projection area of ​​the perforated portion on the mounting portion.

13. The driving member according to claim 1, characterized in that: The driving component also includes a reinforcement member embedded in the insulating body, the reinforcement member includes a reinforcement plate and a reinforcement arm formed by bending the end of the reinforcement plate, the insulating body includes a bottom plate and a side plate extending from the bottom plate, the reinforcement plate is embedded in the bottom plate, the reinforcement arm is located at the side plate corresponding to the buffer assembly and is arranged parallel to the mounting portion.

14. The driving member according to claim 13, characterized in that: The reinforcing arm is provided with a glue grabbing hole at a position corresponding to the buffer component; and / or the roughness of the surface of the reinforcing arm at a position corresponding to the buffer component and facing the buffer component is greater than the roughness of other positions, and glue is filled between the reinforcing arm and the mounting portion.

15. A motor, characterized in that: The motor includes a driving component as described in any one of claims 1 to 14 and a matching component that generates relative motion with the driving component. During the relative motion between the driving component and the matching component, the buffer portion forms a buffering effect for the mutual collision between the driving component and the matching component.

16. A camera module, comprising a lens assembly, characterized in that: The camera module also includes a motor as described in claim 15, and the motor drives the lens assembly to move.

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